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Beilstein J. Nanotechnol. 2015, 6, 1957–1969, doi:10.3762/bjnano.6.200
Figure 1: SEM images of ZnO nanopowders in their as-produced (before annealing) state: (a) undoped, (b) doped...
Figure 2: SEM images of annealed ZnO nanopowders after annealing at 800 °C in nitrogen: (a) undoped, (b) dope...
Figure 3: SEM images of annealed ZnO nanopowders after annealing at 800 °C in synthetic air: (a) undoped, (b)...
Figure 4: Dependence between the nominal and experimental Co doping concentration for the samples before anne...
Figure 5: (a) Photographs of the Zn1−xCoxO precursor in ethylene glycol where the color varies with the compo...
Figure 6: XRD patterns for Zn1−xCoxO nanopowders before annealing, with a nominal Co content in solution of 0...
Figure 7: XRD patterns for Zn1−xCoxO nanopowders after annealing at 800 °C in nitrogen. The metallic α-Co pha...
Figure 8: XRD patterns for Zn1−xCoxO nanopowders after annealing at 800 °C in synthetic air. The Co3O4 phase ...
Figure 9: Dependence of the a and c lattice parameter on nominal Co content, in mol % for: (a) preannealed sa...
Figure 10: Fourier transformations of EXAFS oscillations at the Zn K-edge for the as-synthesized NP samples.
Figure 11: Comparison of the Fourier transformations of EXAFS oscillations measured at the Co K-edge for Zn1−x...
Figure 12: The magnetization dependence on the external magnetic field: (a) for as-synthesized Zn1−xCoxO NPs w...
Figure 13: Magnetic susceptibility dependence on temperature for Zn0.85Co0.15O powder: (a) as-synthesized, b) ...